Hello there @Sublime_Theros!
Checking through your logs, the error you are receiving as multiple possible causes. To reach a solution, the best approach would be to experiment with the possible fixes, that have yield results through the community.
- Close visual studio and visual code in the background, while packing
- Check for any duplicate files present in your project
- Delete the Intermediate folder from the project, then repack
- Review your installed plugins, for any duplicates enabled
- Test building in Development mode
More available options can be found in the following threads:
If all methods fail, I would suggest a full uninstall/reinstall of all Epic software, along with a refresh for Visual Studio:
- First, uninstall the engine, launcher, asset packs, etc
- Next, open the registry directory HKEY_CURRENT_USER\Software\Epic Games\Unreal Engine\Builds, and delete any build entries
- Finally, delete the folders %userprofile%\AppData\Local\UnrealEngine and %userprofile%\AppData\Local\UnrealHeaderTool
- After that, no elements related to UE should be left in your system
- Now, reinstall UE launcher from scratch, and add any version of the engine you need